This is interesting... a friend of mine just tried to order the SXPS with the i7-820 processor and got denied by Dell. Apparently, the 1645 has been fully discontinued, and Dell will no longer be placing the i7-820 processor in any SXPS form factor. They quoted that due to hardware and power issues as the reason behind discontinuing the 1645 (and replacing it with the 1647) and killing i7-820 support. The sales rep said the only offering will be the Studio series for the i7-820.

As a 1645 owner with the i7-820, this is kinda scary that this laptop has been discontinued this quickly as well as the offering of the 820 series chip. We ended up calling a second time, and another sales rep confirmed the same story.

Anyone get similar information from Dell on this? I'm also wondering if this is a "Dell Canada" thing...

Hi at the moment i have a dell sxps 1645 and i wold like to know about the bios because im on the A01 bios at the moment and im not experiencing any crashes or anything else apart from the throttling ;( is it worth upgrading to the A03 or A05?

This is a problem with the P55 chipset and connecting the iPhone in Win7 64-bit versions. Did anyone get this to work on their SXPS 1645 as of yet? Or are we all waiting for a BIOS update from Dell for this? I've tried tons of different things, and for the life of me can't get it to work.

Is having an i7-920XM (55 W TDP) in an SXPS 1645 a good idea? I understand that the TDP of the 720QM and 820QM are both 45 W, but do you people think the extra 10 W required to cool it will pose some risk to the other components?

How do I tell if mine is 130 W or 90 W? I have 2 adapters: the 1st came with my older 1640 and says 90 W on the front, while the newer one that came with my 1645 does not say anything related to W. The part # is WK890 and everything else is about Amps, Voltages, Made in China, etc.

So ever since the technician came out and upgraded my processor from the i7 720 to the 820, the fan has been coming on louder and more frequently than when i first got the laptop. Any ideas as to why? Is this something that can be easily fixed?

It's been over a month since I purchased my unit from Dell Malaysia and just yesterday I faced this very unusual problem with my keyboard. Keys 6 7 y u h j n m were not functioning. Did any of you experienced the same problem?

I am currently here in Jeddah, Saudi Arabia and in case any of you knows how I can manage to avail Dell's warranty service from he I would love to hear from you.

So I when I first got this laptop a few weeks ago I instantly installed lucid lynx.

So I am dual booting between W7 and lucid. The odd thing I see is that the grub menu seems to take a random amount of time to come up.

Sometimes it takes a few second to get to the OS list - other times it takes more than 10 seconds. Also - sometimes the OS list will come up - but the keyboard will to be recognized for another few seconds (like 5 or more seconds)...

My SXPS 1645 came with Windows 7 Home Premium, but I wiped the drive and installed Windows 7 Ultimate off of MSDN. What I'd like to do is use the Home Premium installation for my parents' admittedly ancient Dell Dimension 2400.

That system needs to be rescued from the gates of hell anyway, so rather than reinstall Windows XP, I figured it'd be worth seeing how well 7 will run ...

Is the sound quality better on the Dell Studio XPS 1645 than the Alienware 15x?

I am researching the Alienware 15x, with the possibility of returning the 1645 and getting the Alienware.

It seems there are clear tradeoffs. I am not really into gaming, but would prefer a laptop that has complete use of the i7 performance.

It appears that the Alienware does not have the same performance restrictions as the Alienware; however, it looks like many Alienware owners are dissatisfied with the internal laptop sound and the track pad.

I am not looking to hook external keyboards, or an external mouse, or an external speaker system up to the laptop.

Has anyone tried this or even thought to try this? I want to know if besides differing capacities if there are different speeds/classes of the device that are faster than others. Is NAND flash super fast, or just USB drive fast? There's that extra internal WWAN slot that I wouldn't mind filling up with this stuff once I find out the details.

Long story short, i got a replacement refurbished SXPS 1645 system for a E1505 (problems with the E1505 started 12/09/09, after replacing tons of parts problems persisted as of 03/15/10 they approved a dispatch for replacement system), shipped 03/26/10, received 03/29/10(?) 111 days later I had a working computer again, needless to say i am very happy with the replacement! (Maybe i spoke too soon now 05/05)(attached are a few comparison shots to a Gateway LT-2005u 10" netbook...my cheap temporary computer I bought in Dec. to use until Dell got everything fixed)

After starting to read the forums here I am concerned about the longevity of the computer, don't get me wrong, i love the computer...its an awesome replacement But i've already started to notice some issues/problems with the refurb I got...Ok the title is answered, i bought Dell's expensive warranty extension 2 years/$500....

For the last several days my Dell SXPS 1645 laptop running Windows 7 Professional randomly wakes up from either Sleep mode or Hibernation mode at any time during the day. The most it seems to stay off is for ~6 hours. It does not happen when I properly shutdown the PC. I checked the task scheduler, and nothing is scheduled to run at most of the times it wakes up, and none of the tasks are set to wake up the PC if scheduled to run. In the system logs, Windows 7 recognizes that it was waked up, but the "Power-Troubleshooter" event entry looks like this:

Any idea what could be causing this? I'm positive it's not a "Wake-on-LAN" feature as that's fully disabled and I'm only using WiFi anyways. I'm not sure if this happens when the laptop is only plugged in or if it happens on battery as well. (I'm continuing to see if there's a trend on this one)

Some background info: I'm running the original Dell build on the laptop with some of the bloatware removed via Control Panel. I've modded the ATI driver to the latest Catalyst version, which does seem to record the odd event error shortly after power-on (I noticed it when checking the power on event logs)... not sure if that's related.

I'm really starting to hate the bloat of controlpoint, but I have a 5530 WWAN card, so need some software to control it, while searching the Dell support site I cam across R198215.EXE which is a Sony Ericsson Wireless Manager for 5530 cards, this is actually intended for use on the Inspiron Mini 910, but it works a treat on the E6500 too.

The download is 72MB but it only seems to install 5MB of software (you could probably trim that down by removing language dlls), you only need to run the software when you actually want to use the card.

I even got the GPS functioning which is more than even the factory installed drivers could manage, the COM7: port was always silent before, now it happily spits out NMEA sentences

Now to remove as much of ControlPoint as I can get away with, hopefully without having to reinstall XP again.

I have an E4300 and an E6400. The E6400 came with a 5530 WWAN chip, which I would like to move into my E4300 instead. When opening the WLAN/WWAN compartment of the E4300 however there does not seem to be any wiring for the GSM card.

I then found some antenna wires leading to the Latitude ON slot. Since I really doubt I will be getting a Latitude ON chip in the near future, would I be able to run these wires to the WWAN card?